PLS HELP (will mark brainliest) A line passes through the points P (2 , 5) and Q (4 , a). Given that the point R (b , 9) is the midpoint of PQ,
1) Find the value of a and the value of b
2) Find the equation of the line that passes through the points (2 , 3) and (1 , 7)
3) the point (4 , h) lies on the line with equation y= 5 - 2x ,find h.

Given below in the attached file. ⇵

1) a = 13 , b = 3

2) equation: y = -4x + 11

3) h = -3

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

it is a secret for it not to be compromised sorry

step-by-step explanation: